# US 2021/0276437 A1 · Energy supply device for providing electrical energy to a motor vehicle, method for operating an energy supply device, method for manufacturing energy supply devices, and energy supply arrangement

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- Number: US 2021/0276437 A1
- Document ID: US20210276437A1
- Status: Published application
- Kind: A1
- Application number: 17/195,283
- Filed: 2021-03-08
- Published: 2021-09-09
- Earliest claimed: 2020-03-09
- Applicants: Audi AG
- Inventors: Martin DEHM
- Web page: https://patentgrep.com/patent/US20210276437A1

## CPC

- B60L 53/16: Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
- B60L 53/14: Conductive energy transfer
- B60L 53/18: Cables specially adapted for charging electric vehicles
- B60L 53/22: Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
- B60L 53/66: Data transfer between charging stations and vehicles
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 90/12: Electric charging stations
- Y02T 90/14: Plug-in electric vehicles
- Y02T 90/16: Information or communication technologies improving the operation of electric vehicles
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

An energy supply device for providing electrical energy to a motor vehicle comprises an energy supply unit arranged in a housing. It is thereby provided that the energy supply unit is electrically connected on the one hand to an energy source and on the other hand to a transmission device designed to establish a safety extra-low voltage connection to the motor vehicle, and the energy supply unit can be controlled by means of a control unit to provide the energy for the motor vehicle, wherein the control unit is provided and designed to control a further energy supply unit said further energy supply unit can be arranged separately from the energy supply unit in the housing and can be electrically connected on the one hand to the energy source and on the other hand to the motor vehicle. A method for operating an energy supply device, a method for manufacturing energy supply devices and an energy supply arrangement are also provided.

## Claims

### Claim 1

An energy supply device for providing electrical energy for a motor vehicle, the energy supply device comprising:
an energy supply unit arranged in a housing;
wherein the energy supply unit is electrically connected to an energy source and to a transmission device designed to establish a safety extra-low voltage connection to the motor vehicle;
wherein the energy supply unit can be controlled by a control unit to provide the energy for the motor vehicle;
wherein the control unit is designed to control a further energy supply unit; and
wherein said further energy supply unit can be arranged separately from the energy supply unit in the housing and can be electrically connected to the energy source and to the motor vehicle.

### Claim 2 (depends on 1)

The energy supply device according to claim 1, wherein the control unit has a communication device for communicating with a communication counterpart of the motor vehicle.

### Claim 3 (depends on 1)

The energy supply device according to claim 1, wherein the further energy supply unit is electrically connected to a further transmission device designed for a low-voltage connection.

### Claim 4 (depends on 1)

The energy supply device according to claim 1, wherein the energy supply unit and the further energy supply unit are electrically connected to a common energy connection of the housing separately from one another.

### Claim 5 (depends on 4)

The energy supply device according to claim 4, wherein energy supply unit and the further energy supply unit are electrically connected to the common energy connection by a common rectifier.

### Claim 6 (depends on 5)

The energy supply device according to claim 5, wherein the energy supply unit is electrically connected to the common rectifier by a DC-to-DC converter and the further energy supply unit is electrically connected to the common rectifier by a further DC-to-DC converter.

### Claim 7

A method for operating an energy supply device for providing electrical energy for a motor vehicle, the energy supply device comprising an energy supply unit arranged in a housing, wherein the energy supply unit is electrically connected to an energy source and to a transmission device designed to establish a safety extra-low voltage connection, wherein the energy supply unit can be controlled by a control unit for supplying the energy to the motor vehicle, wherein a further energy supply unit is arranged in the housing and is electrically connected to the energy source and can be electrically connected to the motor vehicle, wherein the further energy supply unit is controlled by the control unit for supplying the energy to the motor vehicle.

### Claim 8

A method for producing energy supply devices for providing electrical energy for a motor vehicle, wherein each of the energy supply devices has an energy supply unit arranged in a housing, wherein the energy supply unit is electrically connected to an energy source and to a transmission device designed to establish a safety extra-low voltage connection, wherein the energy supply unit can be controlled by a control unit for supplying the energy to the motor vehicle, wherein for a portion of the energy supply devices, a further energy supply unit is arranged in the housing and is electrically connected to the energy source and can be electrically connected to the motor vehicle, wherein the control unit is designed for controlling the further energy supply unit.

### Claim 9

An energy supply arrangement, comprising:
a motor vehicle;
an energy supply device for providing electrical energy for the motor vehicle;
wherein the energy supply device has an energy supply unit arranged in a housing;
wherein the energy supply unit is electrically connected to an energy source and to a transmission device designed to establish a safety extra-low voltage connection to the motor vehicle;
wherein the energy supply unit can be controlled by a control unit for supplying the energy to the motor vehicle; and
wherein the control unit is designed for controlling a further energy supply unit arranged separately from the energy supply unit in the housing and can be electrically connected to the energy source and to the motor vehicle.

### Claim 10 (depends on 9)

The energy supply arrangement according to claim 9, wherein the motor vehicle is electrically connected to the transmission device by a relocatable current collector and/or has an energy storage device for intermediate storage of electrical energy, which is electrically connected to the current collector by a DC-to-DC converter.